Georgia Secretary of State Brad Raffensperger confirmed Tuesday a bomb threat was made against a polling place, but he said it was of Russian origin and not credible. Raffensperger later clarified in a subsequent press conference that the threat affected between five and seven precincts in multiple Georgia counties.

Russia was behind false bomb threats in Georgia and other states that briefly closed polling stations in some Democratic-leaning areas Tuesday, an escalation in tactics aimed at sowing fear and suppressing votes, federal and local officials said.

At least five polling stations in Georgia will stay open later after bomb threats disrupted voting.The non-credible threats are linked to Russia, the FBI said.Georgia is one of seven swing states that will decide the outcome of the election.